Dear David,
My old records show for no. 4:
Me 262, W.Nr. 500531, formerly with JV 44, Linz, Austria, taken from old B-26 reunion magazine, from Gordon Permann. Checking Wikipedia, it looks like either Linz or Hörchung is correct:
"
Linz Airport (
IATA:
LNZ,
ICAO:
LOWL), also known as
Blue Danube Airport Linz and formerly
Hörsching Airport, is a minor
international airport near
Linz, the third-largest city of
Austria."
Regards,
Richard